Shoe finishing machine



Filed Sept. 21, 1931 Patented Nov. 27, 1934 Npluri-3.o STATE 1,982,592 ysuon Fim-sume MACHINE Stevenson A. Dobyne, St. Louis, Mo., assignor toChampion Shoe Machinery Company, St. Louis,

Mo., a corporation ofv Missouri Application September-21, 1931, SerialNo, 563,910

Claims,

'mi machine as thatv just referred to, however, it

seldom occurs that more than one device of the entire machine is used atthe same time. is particularly true of theV finishing device, such asforinstance buiers of the Naumkeag type, and `f this invention relatesparticularly tov the provision of a convenient finishing apparatus Withwhich maybe employed a Naumkeag buiier.

The objectof this invention generally stated is. `to provide `improvedmountings for a` shoej `goyiinishing device.

Anotherobject of this invention is to provide a shoe finishing devicewhich may be moved into an inoperative position 'Where it Will notinterfere with the other apparatus vvhich may be inV gsi the vicinitythereof;

`A further object of this invention is to provide ashoeiiinlish-ingdevice having an automatically controlled suction tube adjacent thereto.

A further .object of this invention is to'prox vide a shoe finishingdevice having a driving means adapted to` become automatically disen-vgaged .when the finisher has' moved into an inoperative position.

A more specic object of this invention is to `':A provide a shoe nishingdevice particularly 'for' use in a repair shop in which the movement ofthe finisher between operative and linoperative positions eifects anautomatic control of the driving and suction mechanisms.

Other objects will become apparent to those skilled in the art when thefollowing descrip-,- tion isfreadin connection with the accompanyingdrawing, in which:

Figure 1 is a view in end elevation of a shoe gynnishing device mountedupon the usual com-` bination machine of a shoe repair shop.

Figure 2 is a detailedvplan view shown particularly in section takenjalong line 2-2 of y IFigure `l, illustrating particularly `themounting",`

5`5f-mounted upon a suitable supporting .stmctura` This 1 Whichsupporting structure is preferably movable relative to the main frameofxthe machine, upon which the device is provided, such as for instancethe. shoe finishing machine of a' shoe repair shop. In accordance withoneembodiment of the present invention, a supporting structure fortheiinishing device is pivoted upon the main frame of the machine sothat the finisher may be moved through a substantially vertical anglebetween an operating. and a non-operating position. In the illustratedembodiment, a drivingV mechanism for: the finishing device isillustrated as of the belt type, and it will be apparent that when thefinisher is moved into its operative position, the tension upon `the`driving belt is sufficiently. increased so that the belt operates todrive the finisher, whereas when the finisher is in its non-operatingposition, the belt is suiliciently loosened that nol driving force istransmitted thereby.. Furthermore, in accordance with one embodiment ofthe present invention, a suitable suction device is provided adjacentthe nisher and preferably movable with the supporting structuretherefor.The movement of the suction device with the supporting structure for theiinisher is utilized for automatically actuating a suitablecontrol valvefor the suctionrdevice in ordery that the same may be openand operativewhen the liinisher is operated, but closed to'prevent a loss ofvacuumwhen the finisher is in its non-operating position. f

Referring now particularly to the drawing, the iinisher of the presentinvention is ,shown mounted upon the usual supporting frame 1 of afinishing machine such as is generally employed in shoe repair shops.`In accordancewith thev usual practice such finishing machines for use ina shoe repair shop are provided with a driving shaft 2, extendinglength-arm-wise `thereof and upon the shaft 2'is usually mounted aplurality of such pulleys as 3 for transmitting` driving force to thevarious pieces of apparatus provided therealong. Near the upper end ofthe supporting frame 1, a suitable bearing or boss is preferablyprovided for receiving a shaft 4. Upon the shaft 4 the supporting arm orauxiliary frame 5 having a bifurcated end 6, may be pivotally mounted.On the opposite end of the supporting arm 5 from the pivot at 4, anysuitable finishing device such as for instance a buiier of the Naumkeagtype may be mountedas at 7. The end of the supporting arm 5 whichreceives the finishing device as '7 may be suitably formedfas ofthebifurcated structure illustrated in Figure 1, in order to provide aconvenient mounting forA the-'nishing device r7. Interposed between therespective arms of the supporting arm 5, a driving pulley 8 for thefinishing device '7 may be provided. Mounted also upon the side of thesupporting arm 5 is an idling 5 pulley 9, and a second idling pulley 10may be suitably mounted upon the main frame 1 of the machine. A suitabledriving device such as for instance a belt 11 may be provided fortransmitting the driving force to the driving pulley 8 of the finishingdevice and such a belt 11 is preferabl trained over the idling pulleys 9and 10. n

With the arrangement just described, it is apparent that the supportingarm 5 carrying therewith the finishing device 7 and the idlingpulleywhereby the entire structure may be moved into the dotted positionillustrated in Figure 1. A suitable stop such as for instance a lug 12may be provided integral with the supporting arm 5 in order to determinethe dotted line position thereof by engagement with a stationary part ofthe frame 1.

Such machines as the finishing machine of a shoe repair shop aregenerally provided with a 2.5;gsuction device, having outlets adjacentthe various tools in order that the leather trimmings and grindings maybe collected together in a suitable bag and in order to prevent theatmosphere in the room from becoming laden with fssuch grindings. Such asuction device is usually provided with a suitable header as. 13 leadingto the suction apparatus and the collection bag. From the header 13, thevarious outlets lead to positions adjacent the various tools. In accord-3533ance with the present invention, a iieXible tube such as 14 issuitably connected to the header 13 and leads to a position in which themouth 15 thereof isv disposed adjacent the grinding element of thefinisher 7. The mouth 15 of the sucedgtion tube is preferably secured tothe supporting arm 5 by any suitable means such as for instance througha bracket 16. With the arrangement justdescribed, it is apparent thatwhen the supporting arm 5 is moved between the operative po- 4559,sition illustrated in full lines, and the in-operative positionillustrated in dotted lines in Figure 1, the mouth piece 15 of theflexible tube 14 is moved therewith as an associated part so that themouth piece 15 is always disposed adjacent the Qiggrinding element ofthe finisher '7 regardless `of the position thereof.

Mounted in the mouth piece 15 of the suction tube 14, a suitable controlvalve such as for instance a butterfly valve 17 may be provided. It

qwill be understood that the butteriiy valve 17 comprises a disk whichis preferably secured to a shaft-18, which latter may be journaled inthewalls of the mouth piece 15. In accordance with k the present invention,the shaft 18 preferably ex- Qftends through one wall of the mouthpiece15 and at the outside end 19 thereof, a suitable weighted device such asan arm 20, having enlarged portions 21 maybe secured. It will beapparent that the enlarged weighted portion 21 will be readilyresponsiveto the action of gravity, and

accordingly asthe mouth piece 15 is moved between `the positionillustrated in full lines of Figure 1 where the parts are substantiallyhorizontal, and the position illustrated in dotted lines, 'Q 'jwhere'itapproaches the ver-tical, the weighted portion of the arm 21 willoperate to actuate the butteriiy valve 1'7 during such movement of themouth piece l5 with the supporting arm 5 of the apparatus. 1 775g; Inthe roperation ofthe device just described,

9, may be rotated about the shaft 4 as an airis by the dotted lines inFigure 1.

it is apparent that when the supporting arm 5, with its associated partsis moved into position illustrated in Figure 1, the driving pulley 8 forthe finishing device 'l will be considerably closer to the idling pulley10 than when in the operative position illustrated in full lines. Itwill be readily understood that such relative movement of the pulleys 8and 10 will eiiect a substantial decrease in the tension of the belt 11and such relative movement may be so adjusted that when the supportingarm 5 with its associated parts is Amoved into the dotted line position,the tension on the belt 11A will be insufficient to transmit a drivingeffort to the pulley 8. In order, however, to prevent the belt 11 frombecoming displaced with reference to thev various pulleys, when thetension thereon is released, suitable guards such as 22 for the pulley8, 23 for the pulley 10, 24 for the pulley 9, and 25 for the pulley 3are preferably provided in order to maintain the belt 11 in suchposition that upon movement of the supporting arm 5 into its operativeposition, the belt will be disposed in the position for drivingengagement with the respective pulleys. It is apparent, therefore, thatwhen the supporting arm 5 is moved into its inoperative position,illustrated by the dotted lines in Figure 1, the belt 11 will beautomatically released from driving engagement with both the pulleys 8and 3. Furthermore, as the arm 5 with its associated parts moves fromthe full line position to the dotted line position.

illustrated in Figure 1, it will be apparent that the arm 20, by virtueof the weighted portion 21, responding to the pull of gravity, willcontinue to extend in a substantially vertical direction. With the arm20 thus remaining vertical, and the angle of the mouth piece 15 with thehorizontal changing almost ninety degrees as illustrated in Figure 1, itis apparent that the butterfly valve 17 will be moved into such positionthat the opening through the mouth piece 15 will be blocked when thedevice is in its inoperative position illustrated Accordingly, there isprovided. a mounting for a finishing device which permits the finishingdevice to be moved into an inoperative position which is out of the wayand does not interfere with the operation of other pieces of mechanismwhich may be provided in the region thereof, butwhen it is desired tooperate-the finisher, the same may be readily moved into convenientposition illustrated by the full lines in Figure 1 and upon suchmovement the driving mechanism therefor is automatically engaged andthesuction mechanism is automatically set into operation.

limited to the specific details which'have been' hereinbefore described,nor to the use of the device of the present invention with a shoefinishing machine such as is employed in shoe repair shops, it beingunderstood that the device has been described with'reference to such ashoe finishing machine merely for-the purpose of illustration.

Furthermore, it is to be understood that the use.

of such individual features and lsubcombination of features which do notdepart from the spirit of the invention are, although notspeciiicallydescribed herein, contemplated by and withinthe scope of theappended claims.

Having thus described the invention, what is claimed is:

1. A device of the kind described comprising, a iinsher movable intooperative and inoperative positions, a suction tube adjacent saidfinisher and movable therewith through a substantial angle with thehorizontal, a control Valve in said tube, a Weighted member associatedwith said valve and adapted to move under the influence of gravity toactuate the valve as the tube is moved through said angle.

2. A device of the kind described comprising, a finisher movable intooperative and inoperative positions, a driving belt for said iinisher,and idling guide means for said belt so positioned as to be closer tosaid finisher when in inoperative position than when in operativeposition.

3. A device of the kind described, comprising, a supporting frame, anauxiliary frame pivotally mounted on said supporting frame, a finisherand a flexible suction tube carried by said auxiliary frame and movabletherewith into an unobstructive position, and a control valve in saidsuction tube movable in accordance with the position of said auxiliaryframe.

4. A device of the kind described comprising, a linisher movable intooperative and inoperative positions, a driving belt for said nishenrelatively movable idling guides for said belt, and means for movingsaid guides away from each other as the finisher is moved into operativeposition.

5. A device of the kind described, comprising, a finisher movable intooperative and inoperative positions, a suction tube adjacent said nisherand movable therewith, and a control valve movable within said tube andself-operable to close said tube upon movement of said finisher toinoperative position.

l STEVENSON A. DOBYNE.

